/*
 * Copyright (c) 2024 Oracle and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.helidon.common.testing.virtualthreads;

import jdk.jfr.consumer.RecordedEvent;

/**
 * Assertion error used for reporting of Virtual Thread pinning detected during test.
 */
public class PinningAssertionError extends AssertionError {

    /**
     * Pinning JFR event.
     */
    private final RecordedEvent recordedEvent;

    /**
     * Create new pinning exception.
     *
     * @param recordedEvent pinning JFR event
     */
    PinningAssertionError(RecordedEvent recordedEvent) {
        this.recordedEvent = recordedEvent;
        if (recordedEvent.getStackTrace() != null) {
            StackTraceElement[] stackTraceElements = recordedEvent.getStackTrace().getFrames().stream()
                    .map(f -> new StackTraceElement(f.getMethod().getType().getName(),
                                                    f.getMethod().getName(),
                                                    f.getMethod().getType().getName() + ".java",
                                                    f.getLineNumber()))
                    .toArray(StackTraceElement[]::new);
            super.setStackTrace(stackTraceElements);
        }
    }

    @Override
    public String getMessage() {
        return "Pinned virtual threads were detected:\n"
                + recordedEvent.toString();
    }
}
